Tuesday, January 9, 2018

Gold Mining Potential, Never Underestimate "Electronic Waste"

img illustration electronic waste
Around the world, the heavy metal content that exists in 40 percent of landfills comes from electronic waste. Widmer explains that electronic waste contains 1,000 different chemicals. The majority of these toxic substances have an impact on health.

Roff Widmer in a journal entitled "Global Perspective on E-Waste" states that every year, China produces 4 million units of PC waste. While around the world between 1994 and 2003, it generated 500 million units of PC waste. The amount accounts for more than 2.8 million tons of plastic waste, 718 thousand tons of lead waste, 1,363 tons of cadmium waste, and 287 tons of mercury. Unfortunately, the amount has just been donated via PC only, not including other electronic devices.

Christian Hageluken in his book "Recycling gold from electronics: Cost-effective use through 'Design for Recycling'" states there are at least 5 variants of substances in electronic devices. Five such substances are precious metal substances, special metal substances, toxic substances, halogen substances, and other "substances", such as plastics.

Of these substances, precious metals and special metals when treated properly will have economic value such as silver, palladium, platinum, ruthenium, and gold. Other substances can be harmful to the environment, especially if not managed properly.

Paul Goodman in the journal "Current and Future Uses of Gold in Electronics" states that in electronic devices, gold metal elements are used as electroplating materials or metal coating processes. This function is mainly used on the connectors and contacts on the circuit board of an electronic device. This is done because gold is a good electrical conductor, especially for low-voltage devices and low currents.

In addition, the utilization of gold in electronic devices is done primarily because gold has a strong resistance to rust or corrosion. Also, when mixing gold with a small amount of nickel or cobalt, it is capable of producing a strongly resilient electrical conductor.

How much gold content in our handheld phones everyday? To get exact figures is so relative, in the Wired report, an average cell phone unit is estimated to contain 0.2 grams of gold. In mobile phones, gold is commonly contained in SIM cards, logic boards, and components that are behind the LCD screen.

Meanwhile, the World Gold Council, as reported by Business Insider, states that the content of gold in the mobile phone is different than the figures presented by Wired. In a mobile unit, the World Gold Council says there are 50 milligrams of gold.

Hageluken states that there are 300 to 350 grams of gold per ton of mobile phones. In addition, there are 200 to 250 grams of gold on every one ton of computer circuit boards.

Such a large number, according to Hageluken, is created because the world's electronics industry on average uses over 300 tonnes of gold annually for various purposes in electronic devices. The figure is equivalent to 12 percent of gold mined worldwide.

Gold in electronic devices must be "mined" to be obtained. Of course, mining gold in electronic devices is different than mining gold in mining like the one done by Freeport in Papua. In Instructables, how-to services in the virtual world, at least two chemicals are needed to extract gold in electronic devices.

The two chemicals include hydrochloric acid, which is commonly found in cleaning fluids, and pericometric hydrogen commonly found in antiseptic fluids. These chemicals are used after sifting into small pieces of electronic devices to be stripped of their gold.

In addition to these two chemicals, borax is another chemical that must be prepared. This is especially useful for melting the gold that has been successfully taken. Borak is used by first heated together with gold to be melted.

Josehf Lloyd Murchinson, a figure who earned about $ 1,600 for his work mining gold in electronic devices for three months, stated that mining gold in electronic devices is easy.

"Surprisingly, gold recovery using chemicals hardly requires skill," he told Wired.

Generally, gold produced from electronic devices is part of recycling. Citing the Boston Consulting Group report entitled "The Ups and Downs of Gold Recycling" of 26 percent of the world's gold produced through the recycling process.

The recovered gold figures are volatile. The peak occurred in 2009 then. In that year, there was 42 percent of the gold produced produced through the recycling process. In 2014, gold generated from electronic waste is successfully collected as much as 0.5 kilotons. Equivalent with money worth € 18.8 billion.

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